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616915dd | 1 | /* |
11db3170 | 2 | ** Splint - annotation-assisted static program checker |
c59f5181 | 3 | ** Copyright (C) 1994-2003 University of Virginia, |
616915dd | 4 | ** Massachusetts Institute of Technology |
5 | ** | |
6 | ** This program is free software; you can redistribute it and/or modify it | |
7 | ** under the terms of the GNU General Public License as published by the | |
8 | ** Free Software Foundation; either version 2 of the License, or (at your | |
9 | ** option) any later version. | |
10 | ** | |
11 | ** This program is distributed in the hope that it will be useful, but | |
12 | ** WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | ** General Public License for more details. | |
15 | ** | |
16 | ** The GNU General Public License is available from http://www.gnu.org/ or | |
17 | ** the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, | |
18 | ** MA 02111-1307, USA. | |
19 | ** | |
155af98d | 20 | ** For information on splint: info@splint.org |
21 | ** To report a bug: splint-bug@splint.org | |
11db3170 | 22 | ** For more information: http://www.splint.org |
616915dd | 23 | */ |
24 | /* | |
25 | ** cppmain.c | |
26 | */ | |
27 | /* CPP main program, using CPP Library. | |
28 | Copyright (C) 1995 Free Software Foundation, Inc. | |
29 | Written by Per Bothner, 1994-95. | |
30 | ||
31 | This program is free software; you can redistribute it and/or modify it | |
32 | under the terms of the GNU General Public License as published by the | |
33 | Free Software Foundation; either version 2, or (at your option) any | |
34 | later version. | |
35 | ||
36 | This program is distributed in the hope that it will be useful, | |
37 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
38 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
39 | GNU General Public License for more details. | |
40 | ||
41 | You should have received a copy of the GNU General Public License | |
42 | along with this program; if not, write to the Free Software | |
43 | Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
44 | ||
45 | In other words, you are welcome to use, share and improve this program. | |
46 | You are forbidden to forbid anyone else to use, share and improve | |
47 | what you give them. Help stamp out software-hoarding! */ | |
48 | ||
1b8ae690 | 49 | # include "splintMacros.nf" |
b73d1009 | 50 | # include "basic.h" |
616915dd | 51 | # include "cpplib.h" |
52 | # include "cpphash.h" | |
53 | # include "cpperror.h" | |
54 | # include "llmain.h" | |
4dd72714 | 55 | # include "osd.h" |
616915dd | 56 | |
57 | # include <stdio.h> | |
58 | ||
59 | # ifdef WIN32 | |
60 | /*@-ansireserved@*/ | |
61 | extern /*@external@*/ /*@observer@*/ char *getenv (const char *); | |
62 | /*@=ansireserved@*/ | |
63 | # endif | |
64 | ||
65 | /* char *progname; */ | |
66 | ||
67 | cppReader g_cppState; | |
68 | ||
69 | #ifdef abort | |
70 | /* More 'friendly' abort that prints the line and file. | |
71 | config.h can #define abort fancy_abort if you like that sort of thing. */ | |
72 | ||
73 | void | |
74 | fancy_abort () | |
75 | { | |
76 | fatal ("Internal gcc abort."); | |
77 | } | |
78 | #endif | |
79 | ||
80 | void cppReader_initMod () | |
81 | { | |
82 | struct cppOptions *opts = (struct cppOptions *) dmalloc (sizeof (*opts)); | |
83 | ||
3e3ec469 | 84 | cpplib_init (&g_cppState); |
616915dd | 85 | llassert (g_cppState.opts == NULL); |
86 | g_cppState.opts = opts; | |
87 | ||
88 | cppOptions_init (opts); | |
89 | /*@-compdef@*/ /* g_cppState is not yet innitialized */ | |
90 | } /*@=compdef@*/ | |
91 | ||
6fcd0b1e | 92 | void cppReader_destroyMod () |
93 | /*@globals killed g_cppState@*/ | |
94 | { | |
95 | cppCleanup (&g_cppState); | |
96 | } | |
97 | ||
616915dd | 98 | void cppReader_initialize () |
99 | { | |
3e3ec469 | 100 | cpplib_initializeReader (&g_cppState); |
616915dd | 101 | } |
102 | ||
103 | int cppProcess (/*@dependent@*/ cstring infile, | |
104 | /*@dependent@*/ cstring outfile) | |
105 | { | |
106 | FILE *ofile; | |
107 | struct cppOptions *opts = CPPOPTIONS (&g_cppState); | |
108 | ||
109 | opts->out_fname = outfile; | |
110 | opts->in_fname = infile; | |
111 | opts->out_fname = outfile; | |
112 | ||
3e3ec469 | 113 | if (cpplib_fatalErrors (&g_cppState)) |
616915dd | 114 | { |
115 | llexit (LLFAILURE); | |
116 | } | |
117 | ||
118 | g_cppState.show_column = TRUE; | |
119 | ||
120 | if (cppReader_startProcess (&g_cppState, opts->in_fname) == 0) | |
121 | { | |
122 | llexit (LLFAILURE); | |
123 | } | |
124 | ||
d5047b91 | 125 | ofile = fileTable_createFile (context_fileTable (), outfile); |
616915dd | 126 | |
127 | if (ofile == NULL) | |
128 | { | |
129 | fileTable_noDelete (context_fileTable (), outfile); | |
4dd72714 | 130 | osd_setTempError (); |
616915dd | 131 | llfatalerror (message ("Cannot create temporary file for " |
132 | "pre-processor output. Trying to " | |
133 | "open: %s. Use -tmpdir to change " | |
134 | "the directory for temporary files.", | |
135 | outfile)); | |
136 | } | |
137 | ||
138 | for (;;) | |
139 | { | |
140 | enum cpp_token kind; | |
141 | ||
142 | llassert (g_cppState.token_buffer != NULL); | |
143 | ||
144 | if (!opts->no_output) | |
145 | { | |
ce7034f0 | 146 | DPRINTF (("Writing: %s", cstring_copyLength (g_cppState.token_buffer, cpplib_getWritten (&g_cppState)))); |
147 | ||
616915dd | 148 | (void) fwrite (g_cppState.token_buffer, (size_t) 1, |
3e3ec469 | 149 | cpplib_getWritten (&g_cppState), ofile); |
616915dd | 150 | } |
151 | ||
152 | cppReader_setWritten (&g_cppState, 0); | |
3e3ec469 | 153 | kind = cpplib_getToken (&g_cppState); |
616915dd | 154 | |
155 | if (kind == CPP_EOF) | |
156 | break; | |
157 | } | |
158 | ||
159 | cppReader_finish (&g_cppState); | |
dfd82dce | 160 | check (fileTable_closeFile (context_fileTable (), ofile)); |
616915dd | 161 | |
b37cf05e | 162 | /* Restore the original definition table. */ |
616915dd | 163 | |
164 | if (!context_getFlag (FLG_SINGLEINCLUDE)) | |
165 | { | |
166 | cppReader_restoreHashtab (); | |
167 | } | |
168 | ||
169 | ||
170 | /* Undefine everything from this file! */ | |
171 | ||
172 | if (g_cppState.errors != 0) { | |
173 | return -1; | |
174 | } | |
175 | ||
176 | return 0; | |
177 | } | |
178 | ||
1d239d69 | 179 | void cppAddIncludeDir (cstring dir) |
616915dd | 180 | { |
1d239d69 | 181 | /* evans 2001-08-26 |
182 | ** Add the -I- code. This code provided by Robin Watts <Robin.Watts@wss.co.uk> | |
183 | */ | |
616915dd | 184 | |
140c27a8 | 185 | DPRINTF (("Adding include: %s", dir)); |
186 | ||
1d239d69 | 187 | if (cstring_equalLit (dir, "-I-")) |
188 | { | |
189 | struct cppOptions *opts = CPPOPTIONS (&g_cppState); | |
190 | opts->ignore_srcdir = TRUE; | |
191 | } | |
192 | else | |
193 | { | |
1d239d69 | 194 | struct file_name_list *dirtmp = (struct file_name_list *) dmalloc (sizeof (*dirtmp)); |
195 | ||
196 | DPRINTF (("Add include: %s", dir)); | |
140c27a8 | 197 | |
1d239d69 | 198 | dirtmp->next = 0; /* New one goes on the end */ |
199 | dirtmp->control_macro = 0; | |
200 | dirtmp->c_system_include_path = FALSE; | |
201 | ||
202 | /* This copy is necessary...but shouldn't be? */ | |
203 | /*@-onlytrans@*/ | |
204 | dirtmp->fname = cstring_copy (dir); | |
205 | /*@=onlytrans@*/ | |
206 | ||
207 | dirtmp->got_name_map = FALSE; | |
208 | cppReader_addIncludeChain (&g_cppState, dirtmp); | |
209 | } | |
616915dd | 210 | } |
211 | ||
212 | void cppDoDefine (cstring str) | |
213 | { | |
214 | cppBuffer *tbuf = g_cppState.buffer; | |
215 | ||
216 | g_cppState.buffer = NULL; | |
217 | cppReader_define (&g_cppState, cstring_toCharsSafe (str)); | |
218 | g_cppState.buffer = tbuf; | |
219 | } | |
220 | ||
221 | void cppDoUndefine (cstring str) | |
222 | { | |
abd7f895 | 223 | size_t sym_length; |
cd7d9b17 | 224 | hashNode hp; |
616915dd | 225 | char *buf = cstring_toCharsSafe (str); |
226 | ||
227 | sym_length = cppReader_checkMacroName (&g_cppState, buf, | |
abd7f895 | 228 | cstring_makeLiteralTemp ("macro")); |
616915dd | 229 | |
abd7f895 | 230 | while ((hp = cpphash_lookup (buf, size_toInt (sym_length), -1)) != NULL) |
616915dd | 231 | { |
232 | /*@-exposetrans@*/ /*@-dependenttrans@*/ | |
233 | cppReader_deleteMacro (hp); | |
234 | /*@=exposetrans@*/ /*@=dependenttrans@*/ | |
235 | } | |
236 | } | |
237 | ||
238 | void cppReader_saveDefinitions () | |
239 | { | |
240 | if (!context_getFlag (FLG_SINGLEINCLUDE)) | |
241 | { | |
242 | cppReader_saveHashtab (); | |
243 | } | |
244 | } |